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| CAS No.: | 91-94-1 | |||
|---|---|---|---|---|
| Name: | 3,3'-Dichlorobenzidine | |||
| Molecular Structure: | ||||
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| Formula: | C12H10 Cl2 N2 | |||
| Molecular Weight: | 289.592 | |||
| Synonyms: | Benzidine,3,3'-dichloro- (7CI,8CI); 3,3'-Dichloro-4,4'-diaminobiphenyl;3,3'-Dichloro-p,p'-bianiline; 3,3'-Dichlorobenzidine;3,3'-Dichlorobiphenyl-4,4'-diamine; 4,4'-Diamino-3,3'-dichlorobiphenyl;4,4'-Diamino-3,3'-dichlorodiphenyl;4'-Amino-3,3'-dichloro[1,1'-biphenyl]-4-ylamine; C.I. 23060; Curithane C 126;NSC 154073; o,o'-Dichlorobenzidine | |||
| EINECS: | 202-109-0 | |||
| Density: | 1.381 g/cm3 | |||
| Melting Point: | 132 - 133 C | |||
| Boiling Point: | 368 C | |||
| Flash Point: | 186.6 °C | |||
| Solubility: | Insoluble AUTOIGNITION | white to grey white crystalline powder | ||
| Hazard Symbols: | 6.1 (Packing Group: III) UN NO. | |||
| Risk Codes: | 45-21-43-50/53 | |||
| Safety: | Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Human mutation data reported. When heated to decomposition it emits very toxic fumes of Cl− and NOx. | |||
Analytical Methods: | For occupational chemical analysis use OSHA: #ID-65 or NIOSH: Benzidine and 3,3′-Dichlorobenzidine, 5509. |
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| Transport Information: | 20kg | |||
| PSA: | 52.04000 | |||
| LogP: | 4.98720 | |||
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Chemistry
IUPAC Name: 3,3'-Dichlorobenzidine
The MF of 3,3'-Dichlorobenzidine (91-94-1) is C12H10Cl2N2.
The MW of 3,3'-Dichlorobenzidine (91-94-1) is 253.13.
Synonyms of 3,3'-Dichlorobenzidine (91-94-1): 3,3'-Dichlorobenzidine ; [1,1'-Biphenyl]-4,4'-diamine, 3,3'-dichloro- ; 3,3'-Dichlorbiphenyl-4,4'-diamin ; 3,3-Dichloro-(1,1'-biphenyl)-4,4'-diamine ; 3,3'-Dichloro-4,4'-diamino(1,1-biphenyl) ; 3,3'-Dichlorobenzidina
Product Categories: Intermediates of Dyes and Pigments;Aryl Amines MAK III, Category 2Volatiles/ Semivolatiles;2002/61/EC;Alpha Sort;D;DAlphabetic;DIA - DICMethod Specific;European Community: ISO and DIN;Method Specific;Oeko-Tex Standard 100;OLM04 Statement of WorkMethod Specific;CLP Standards;DIA - DICEPA
Form: colourless to white crystalline solid
Index of Refraction: 1.678
EINECS: 202-109-0
Density: 1.381 g/ml
Flash Point: 186.6 °C
Boiling Point: 385 °C
Storage Temp: 2-8°C
Stability: Stable
Uses
3,3'-Dichlorobenzidine (91-94-1) is used in the dye industry, curing agent for isocyanate terminated resins.
Production
A halogenated amine. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
Toxicity Data With Reference
| 1. | mmo-sat 50 µg/plate | CALEDQ Cancer Letters (Shannon, Ireland). 4 (1977),21. | ||
| 2. | dns-hmn:hla 100 nmol/L | CNREA8 Cancer Research. 38 (1978),2621. | ||
| 3. | bfa-rat/sat 40 mg/kg | SAIGBL Sangyo Igaku. Japanese Journal of Industrial Health. 23 (1981),426. | ||
| 4. | otr-ham:kdy 80 µg/L | BJCAAI British Journal of Cancer. 37 (1978),873. | ||
| 5. | dnd-mam:lym 25,500 nmol/L | CBINA8 Chemico-Biological Interactions. 38 (1982),369. |
Consensus Reports
NTP 10th Report on Carcinogens. IARC Cancer Review: Group 2B IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 (1987),p. 193.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 29 (1982),p. 239.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 29 (1982),p. 239.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 4 (1974),p. 49.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory. Community Right-To-Know List. EPA Genetic Toxicology Program.
Safety Profile
Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Human mutation data reported. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
Safety information of 3,3'-Dichlorobenzidine (91-94-1):
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Risk Statements
45 May cause cancer
21 Harmful in contact with skin
43 May cause sensitization by skin contact
50/53 Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
39/23/24/25 Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed
11 Highly Flammable
Safety Statements
53 Avoid exposure - obtain special instruction before use
45 In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
60 This material and/or its container must be disposed of as hazardous waste
61 Avoid release to the environment. Refer to special instructions safety data sheet
36/37 Wear suitable protective clothing and gloves
16 Keep away from sources of ignition - No smoking
7 Keep container tightly closed
RIDADR UN 3077 9/PG 3
WGK Germany 3
RTECS DD0550000
Standards and Recommendations
OSHA PEL: Cancer Suspect Agent
ACGIH TLV: Animal Carcinogen
DFG MAK: DFG TRK: Animal Carcinogen, Suspected Human Carcinogen
NIOSH REL: (Benzidine-based Dye) Reduce to lowest feasible level
Analytical Methods
For occupational chemical analysis use OSHA: #ID-65 or NIOSH: Benzidine and 3,3′-Dichlorobenzidine, 5509.